Aplicações da computação gráfica à engenharia biomédica: ensino em neurociências e ferramenta de apoio ao estudo da deglutição

• Ano de defesa: 2007
• Autor(a) principal: Silva, Silone Ferreira da
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Uberlândia; BR; Programa de Pós-graduação em Engenharia Elétrica; Engenharias; UFU
• Palavras-chave em Português: Educação inderdisciplinar; Plataforma VRML; Videofluoroscopia; Análise de imagens; Engenharia biomédica; Deglutição; Inderdisciplinary education; VRML Platform; Videofluoroscopy; Image analysis; CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
• Link de acesso: https://repositorio.ufu.br/handle/123456789/14649

This thesis applies computer graphics to two important fields of Biomedical Engineering. Firstly, in order to provide new software for interdisciplinary education, an interactive Virtual-based platform was developed, presenting a tridimensional visualization of the neuron and of its major microestructures. Such platform enables an overall view of the neural cell, including particular details in a microcellular level. Several issues regarding the tridimensional reconstruction of neuroanatomical strucutures based on photos taken from real-life tissues are discussed, leading to the implementation of a bidimensional atlas, that establishes connections between neuroanatomy and the clinical practice. Secondly, a system for the efficient and accurate estimation of the time intervals associated with swallow phases was developed, supposing videofluoroscopic images as inputs. The system performs pre-processing of such images by means of file conversions, followed by image analysis, that leads to the final estimation. A clinical experiment was carried out in order to validate the platform, yielding (allowing) a preliminar proposition for a normal pattern of swallow , which is based on the average-estimated swallow times. Results pointed out that the system may be considered, flexible, requiring simple hardware/software configurations, and also providing details on fractioning.